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e16a7d8f3b
`et` means `expandtab`. ```sh rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\) :vi/vi: \1 xoet\2:vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2 :vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/' ```
76 lines
3.7 KiB
C
76 lines
3.7 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2022 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/internal.h"
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#include "libc/calls/struct/timespec.h"
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#include "libc/calls/struct/timespec.internal.h"
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#include "libc/calls/struct/timeval.h"
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#include "libc/calls/syscall_support-sysv.internal.h"
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#include "libc/dce.h"
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#include "libc/errno.h"
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#include "libc/nexgen32e/rdtsc.h"
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#include "libc/runtime/runtime.h"
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#include "libc/sysv/consts/auxv.h"
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#include "libc/sysv/consts/clock.h"
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#include "libc/testlib/ezbench.h"
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#include "libc/testlib/testlib.h"
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#include "libc/time/time.h"
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TEST(clock_gettime, nullResult_validatesClockParam) {
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ASSERT_SYS(EINVAL, -1, clock_gettime(666, 0));
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}
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TEST(clock_gettime, test) {
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struct timespec ts = {0};
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ASSERT_EQ(0, clock_gettime(0, &ts));
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ASSERT_NE(0, ts.tv_sec);
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ASSERT_NE(0, ts.tv_nsec);
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}
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TEST(clock_gettime, testClockRealtime) {
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struct timeval tv;
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struct timespec ts;
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EXPECT_NE(-1, gettimeofday(&tv, NULL));
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EXPECT_NE(-1, clock_gettime(CLOCK_REALTIME, &ts));
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EXPECT_LT((unsigned)ABS(ts.tv_sec - tv.tv_sec), 5u);
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}
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TEST(clock_gettime, bench) {
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struct timeval tv;
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struct timespec ts;
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gettimeofday(&tv, 0); // trigger init
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clock_gettime(0, &ts); // trigger init
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EZBENCH2("rdtsc", donothing, rdtsc());
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EZBENCH2("clock_gettime(mono)", donothing,
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clock_gettime(CLOCK_MONOTONIC_FAST, &ts));
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EZBENCH2("clock_gettime(real)", donothing,
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clock_gettime(CLOCK_REALTIME_FAST, &ts));
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EZBENCH2("timespec_real", donothing, timespec_real());
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EZBENCH2("gettimeofday", donothing, gettimeofday(&tv, 0));
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if (IsWindows()) {
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EZBENCH2("sys_clock_gettime r", donothing,
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sys_clock_gettime_nt(CLOCK_REALTIME_FAST, &ts));
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EZBENCH2("sys_clock_gettime m", donothing,
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sys_clock_gettime_nt(CLOCK_MONOTONIC_FAST, &ts));
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} else {
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EZBENCH2("sys_clock_gettime r", donothing,
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sys_clock_gettime(CLOCK_REALTIME_FAST, &ts));
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EZBENCH2("sys_clock_gettime m", donothing,
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sys_clock_gettime(CLOCK_MONOTONIC_FAST, &ts));
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}
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}
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